subnet.im

AS214762Sebastian Stefanek trading as MatHost.eu

PolandRegistryRIPE NCCTypeContent

As of 26th September 2026, AS214762 (Sebastian Stefanek trading as MatHost.eu), a content network registered in Poland with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 48,553rd-largest of the 79,516 networks we see originating IPv4, and the 1,066th-largest of 2,096 in Poland. It is seen behind 10 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS6204 (TMRC GROUP SRL), and in front of 20 downstream networks. 73% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

9

IPv4 addresses

512

IPv6 /64s

288M

Upstream graph

The networks AS214762 is seen behind, one and two hops out, drawn from real AS paths.

AS214762Toward the internet core
Upstream graph for AS214762: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS214762Sebastian Stefane…This networkAS6204TMRC GROUP SRLAS6939Hurricane Electri…AS50263A-Systems Sp. z o…AS205941Lungu Stefan Gabr…AS214757Jakub KrsaAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS3257GTT Communication…AS132337AxclusiveAS57463NetIX Communicati…

Networks observed one and two hops upstream of AS214762 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

82

adjacent networks

Upstreams
1012%
Peers
5263%
Downstreams
2024%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS214762
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer2,03366
AS6204TMRC GROUP SRLROPeer63672
AS50263A-Systems Sp. z o.o.PLPeer19126
AS214757Jakub KrsaCZPeer18329
AS205941Lungu Stefan GabrielROPeer8763
AS62403PletX GmbHDEPeer7777
AS32590Valve CorporationUSPeer442
AS24940Hetzner Online GmbHDEPeer432
AS15694Atman Sp. z o.o.PLPeer4314
AS24482SG.GSSGPeer162

Prefixes

The largest blocks AS214762 originates, widest first.

Largest prefixes originated by AS214762
PrefixAddressesVisibility
44.30.200.0/2425681/81
89.144.32.0/2425680/81
2a13:c8c4:1000::/36268M × /6463/64
2a0f:b240:5c00::/4016.8M × /6463/64
2a05:dfc1:1410::/441M × /6463/64
2a07:54c1:c000::/441M × /6463/64
2a06:1283:8904::/4865.5k × /6463/64
2a06:1283:890c::/4865.5k × /6463/64
2a0f:85c1:80b::/4865.5k × /6463/64
2a13:9500:53::/4865.5k × /6463/64

Routing health

How AS214762's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid72.7%8
  • Invalid0.0%0
  • No ROA27.3%3

Propagation

  • Globally propagated90% of full-feed peers or more90.9%10
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%9.1%1

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 9 prefixes

  • /36268M × /6411.1%1
  • /4016.8M × /6411.1%1
  • /441M × /6422.2%2
  • /4865.5k × /6455.6%5

Recent changes

Announcements that started or stopped since 28th Aug 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.